Changes in eleven pesticide residues in jujube (Ziziphus jujuba Mill.) during drying processing

文献类型： 外文期刊

第一作者： Wu, Liming

作者： Wu, Liming;Xue, Xiaofeng;Zhao, Liuwei;Liu, Fengmao;Ge, Jing;Ma, Lili

作者机构：

关键词： Drying process; jujube; pesticide residue; processing factor; safety

期刊名称：DRYING TECHNOLOGY （ 影响因子：4.452； 五年影响因子：4.034 ）

ISSN： 0737-3937

年卷期： 2018 年 36 卷 8 期

页码：

收录情况： SCI

摘要： Processing can concentrate residues or convert residues to more toxic metabolites in food. The residual behavior of 11 pesticides in jujube fruits during four drying processes (freeze-, oven-, sun-, and microwave-drying) was assessed. Jujube samples with residues of dichlorvos, malathion, chlorpyrifos, triadimefon, hexaconazole, myclobutanil, kresoxim-methyl, tebuconazole, epoxiconazole, bifenthrin, and cyhalothrin were obtained from field trials. The degradation rates of pesticides during four drying processes were between 11.4 and 95.1%. Pearson analysis showed that the degradation of pesticide residues in jujube during sun-, oven-, microwave-drying processing was related to vapor pressure and solubility in water of the pesticides. Furthermore, the effects of four drying processes on the processing factors (PFs) were investigated. After freeze-drying, PFs of pesticides were > 1, except for chlorpyrifos, suggesting that the dietary exposure risk of pesticides from jujube might be increased if freeze-dried samples were used. After microwave-drying, the PFs of all pesticides were < 1, indicating microwave-drying process can significantly reduce 11 pesticide residues in dried jujube.

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